Shock absorber



i925. 153mm S. A. KOST ET AL SHOCK ABSORBER Filed April 24, 1925 @MMM Patented Mai'. 24, 1925,

y UNITED STATES lyiilltl PATENT orsice.vv 1.

`STEPHEN A. KOST AND AITBERT'L. DANIELOF BUFFALO, NEVI YORK, ASSTGNORS TO l WESTERN IMPLEMENT COMPANY, OFPORT WASHTNGTON, WISCONSIN.

Application filed April 24,v 1923. Serial No. y634,24*?.

To (zZZ 'whom t may concern:

Be it known that we, STEPHEN A. Kos'r and ALBERT L. DANIEL, both citizens of the United States, and residents of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Shock Absorbers; and we do hereby declare that the following is a full, clear, and exact description theieof.

This invention relates to shock absorbers and is particularly directed to shock absorbers for vehicles, i

Objects of this invention aretoprovide a shock absorber which will aid the main sjiirings of an automobile in checking an excessive downward motion of the body and which will check a rebound or sudden upward motion, thereby effectively cushioning the body, which will quickly damp out periodic or sustained vibration, and which will cushion all the relatively small rapid tremors which the chassis or ruiming gear is subjected to and prevent their communication to the body.

Further objects are to provide a shock absorber which may be readily applied to existing types of automobiles, which utilizes the major portion of theattaching means found upon standardequipment, which prevents excessive side or lateral swaying of the body, and which is efficient and reliable in operation. i i

Further objectsl are to provide a shock absorber which is compact yand attractive in design, whichlia-rmonizes in general ap,- pearance with the spring suspension construction, which is of sturdy and simple construction, and which may be readily and cheaply produced.

Embodiments of the invention are shown in the accompanying drawings, in which:

Figure `1 is a fragmentary view of the front portion of the ruiming gear, or chassis of an automobile with the shock absorber in position and in section, v

Figure 2 is a corresponding view of the shock absorber as it appears when applied to the rear axle.

Figure 3 is a' sectional viewon the line 3-3 of Figurel. Y

Figure 1 sho-ws the main spring 1 and the front axle '2 which are normally connected by means of a link 3 and bracket 4. However, in the practice of this invention, the link 3 is detached from the bracket 4 and the bracket isturned so that its upper end points outwardly.` Atriangularmein#V ber 5 is pivoted to the `bracket4 at a point i intermediate two of its apexes. At one of its apexes it is joined by means of a pivotl pin 6 with the link 8 and adjacent the apex upon the opposite side of the' pivot pin 7 Shown in Figure 1. A projection or pin 12 located adjacent the remaining apex of the pivotally mounted mem-ber 5 and bears upon `an intermediate portion ofthe arm 10 of the auxiliary leaf spring.y

As may ibe seen from Figure 3 the member 5 comprises two similar plates, which are integrally joined by means of a hollow integral spacer, or hub'12. The side plates of the member 5 are inwardlydepressed ad-` jacent this spacerand the links 3 are located upon opposite` sides of such Lmember and within the depressed portion. The upper portion of the bracket 4 is received between the side plates of the member 5. and the spring 10 issimilarly located between such side plates; j j j As shown' in Figure 2 the shock absorber is equally well adapted for attachment to the rear main springs 13. This shock'absorber is in all essential respects similar to that shown in Figure 1 and comprises side plates 14 and integral spacer 15 and the pivot pins, or projections 6,8 and 12 to which the links and the auxiliary leaf spring 16 are secured in a manner identical with that disclosed in-Figure 1. If desired., the spring 16 may have a shorter bowed portion, as indicated at 17 than that indicated at 9 in Figure 1. i

This shock absorber is pivotally joined by means of the pin 18 to a'bracket 19, which is provided with an outwardly projecting screw threaded pin 20 adapted lto be passed through an `aperture customarily provided in the housing 21 and is adapted to be held in place by means of a nut 22.

BothV forms of shock absorbers operate in identically the same manner and, therefore,

a description of the operation of one, such 'f 'such main spring.

a load is placed .upon thespring '10, tor example, by a sudden upward motion f the ruiming gear, the main spring pulls downwardly upon the link 3 with an increased force', thereby locking the member 5 about the pivot pin 7 and causing the outer portion 11 of the leaf spring to bear with greater force upon the upper side of the main spring at a point removed from thefextremity of This causes,` therefore, an increase in the resisting :torce offered by the-main spring and, consequently, tends to retard sudden flexing of the ma-in spring.

Upon rebound the main spring takes a greater curvature and, consequently, presses the arm l() upwardly. It will be seen, therefore, that the arm l0 of theauxiliary spring is pressed downwardly against the relaxing main spring and tends, therefore, to check the upward rebound.

It is to be noted that tremors or sudden vibrations of the ruiming gear, vor chassis, will not be transmitted to the main spring and trom'thence-to the body of the automobile, Jfor the reason that the pivotally mounted. members of the shock absorbers will rock and cause the relatively lighter auxiliarysprings to take up these repeated motions.

It is to be noted that the tendency of the shock absorber is to damp out periodic, or recurring oscillations of the body portions of the automobile with reference to the running gear-,for the reason that the restoring force of Lthe entire system does not uniformly vary for deliections in oppositer di-y rections from aneutral position. In other `words, an aperiodic system is provided.

It is further Ito be noted that a very minor change is necessitated when adapting the usual typeot automobileto these shock absorbers. In 4the form shown in Figure l it is merely necessary to disconnect the link 3 from' the standard bracket Lt and turn the bracket outwardly. In the form shown in Figure 2, the usual bracket is dispensed with and-the bracket 1.9 substituted therefor. These changes are very easily made and, therefore, the shock absorbers may be most easily and readily applied to existing types of automobiles. e

It is Jfurther to be noted that-the shock absorbers tend to prevent excessive side, or lateralswingingof 4the body ot the automobile with -reterence tothe running gear, for when such side swinging occurs, lthe members k5 or Illl vare rockedv about their pivot points andthe springs l0 or Ilare compressed in a manner "to resist this-motion.

It will be seen, therefore, that an -extremely `simple and efficient shock absorber has been provided for automobiles and Vone which may be cheaply manufactured and easily applied,

Although the invention'has been described in considerable detail, it is to be understood that the principle thereof may be followed in diii'erent w.terms from those shown in the drawings and the invention,therefore, is not to be limited, except as delined in the appended claims.

IVe claim:

l. Inanautomobile the combination ot a running gear, a bracket carried thereby, a substantially triangular member pivotally joined to said bracket at a point intermediate two o't' its apexes. a main spring operatively joined to said'triangular member adjacent one otitis apexes on one side oi the pivot point, an auxiliary *leaf yspring pivota'lly joined to said member adjacent another apex on the opposite side of the pivotpoint and curving over -and bearing at its free end against'said mai-n spring, and a projecting kmember carried by said triangular member adjacent its third apex and bearing upon an intermediate portion of saidauxiliary spring. i

y2. In anautomobile, vthe combination ot a running gear, a-bracketcarried thereby, a triangular rocking member pivoted to said bracketalong one side between an inner and an outer apex andy having its third apex normally projecting'upwardlyand inwardly with relation'to said pivot point, a main spring` pivotally joined to said inner apex, an auxiliary spring pivoted to said outer apex and curving outwardly andextending tothe upper side of said main spring, and a projection carried adjacent the uppermost apex-and bearing against the upper side only of said auxiliary spring,-whereby when said :main spring is depressed, said triangular rmember is rocked and -said auxiliary spring pivots about the outer apex of said triangular member and is depressed intermediate its ends-by said projection.

B, In Aan autoniobile, the combination of a running gear, a member comprising a pair of spaced plates with a spacer between said plates and integrally joined thereto, abracket carried by said running gear `and located between and pivoted'to saidplates, a mainspring, ap'air of links pivotally connecting said'main springe-nd sai-d vmember andlocated upon the outer sides of said memberqadjacent said spacer, a pair of pins carried by saidmember andpassing through said plates,'and -an auxiliary spring pivoted vto one ofy said pins and bowed outwardly and v'having an elongated portiony passing beneath the other pinA and bearing at its end against rsaid main spring.

In testimony that we claim the foregoing wehavehereunto 4set our hands at Buffalo, l,inthe county of'Erie andState of New York.

' STEPHEN A.' KOST.

ALBERT DAME-L lill 

